KR20060053130A - Buckle - Google Patents

Abstract

In the buckle 10 having the plug 30 and the socket 20, the plug 30 is relatively moved in the direction in which the plug 30 is inserted inward from the insertion opening 21 of the socket 20. Posture matching means for matching the relative posture of the plug 30 and the socket 20 in a direction in which the front-back direction axis A2 and the front-back direction axis A1 of the socket 20 are parallel to each other. The posture matching means is provided in the socket 20 and the front end side of the guide passage 24 having a diameter extended, and the step portion 36 as the guided means installed in the plug 30 and guided by the guide passage 24. It is provided.

Socket, Guideway, Axis, Plug, Step

Description

Buckle {BUCKLE}

1 is a perspective view showing a state where a plug and a socket are engaged in a first embodiment according to the buckle of the present invention.

Fig. 2 is a perspective view showing the structure of the socket in the first embodiment.

Fig. 3 is a perspective view showing the configuration of the plug in the first embodiment.

4 is a cross-sectional view taken along the line IV-IV in FIG. 1 in the first embodiment.

Fig. 5 is a view showing a change in a state where a plug is inserted into a socket in the first embodiment.

Fig. 6 is a diagram showing a change in a state where a plug is inserted into a socket in the first embodiment.

FIG. 7 is a view showing a change in a state where a plug is inserted into a socket in the first embodiment; FIG.

Fig. 8 is a perspective view showing the structure of a plug in the first modification of the buckle of the present invention.

Fig. 9 is a diagram showing the configuration of a plug and a socket in a second modification of the buckle of the present invention.

Fig. 10 is a diagram showing the configuration of a plug and a socket in a third modification of the buckle of the present invention.

Fig. 11 is a perspective view showing the configuration of the plug and the socket in the second embodiment according to the buckle of the present invention.

Fig. 12 is a perspective view showing a case in which a guide path is formed in the plug and a guide means is provided in the socket as a modification of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: buckle

20: socket

21: insertion hole

22: socket base portion

23: housing part

24, 40: as a guide

25 axis line

30: plug

31: plug base portion

32: lock arm

33, 50: guide bar

34, 52: bridge

35: guide head

36: stepped portion

37: edge edge

101: belt

231: ceiling plate part

232: bottom plate

233: side plate

241 vertices

321: pressure moving operation unit

322: through hole

323 thin plate connection

324: hook hook

Document 1 JP 2003-284606 A

[Reference 2] US 5926928 A

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buckle having a socket and a plug that can be detached by manual operation, and for example, to a buckle for freely connecting and disconnecting ends of tape-like members such as belts.

Conventionally, the buckle is used in connecting and separating the ends of tape-like members, such as a belt, freely (Document 1: JP 2003-284606 A, Document 2: US 5926928 A).

The buckle is comprised with the socket which the front end side opened, and the plug latched by the socket so that a latch removal is possible in the state fitted in this socket.

In inserting the plug into the socket, first, the front and rear axes of the socket and the front and rear axes of the plug are matched in parallel, and the plug is inserted straight into the socket while maintaining this state. The plug is then inserted into the socket to engage the plug in the socket.

In addition, an insertion hole is formed at the front end of the socket, and a portion that is inserted into the insertion hole of the socket from the front end of the plug, and the forward and backward axis of the socket is the axis from the insertion hole of the socket to the inner direction through the center of gravity of the socket. And the forward and backward axis of the plug refers to the axis from the front end to the rear end of the plug past the center of gravity of the plug.

However, in the conventional buckle, when inserting the plug into the socket, the forward and backward axis of the socket and the forward and backward axis of the plug must be matched, and the trouble of adjusting the relative posture of the socket and the plug is troublesome. there was.

In addition, if the plug is inserted into the socket without matching the forward and backward axes between the socket and the plug, the plug may not be inserted into the socket or may be caught in the socket. There has been a problem that the socket and plug must be reinserted after the forward and backward axes are matched.

Considering the actual case of using a buckle, for example, when the buckle is used for fastening a belt such as a bag, there are many cases in which a socket and a plug are held in a socket fixed to the bag by holding only the plug by hand. In such a case, it is difficult to align the forward and backward axes of the socket and the plug, and thus a problem arises that it is not convenient to use because it is reinserted several times.

The main object of the present invention is to provide a buckle that can be easily and smoothly hooked with a socket.

The buckle of the present invention is a buckle having a plug, a socket into which the plug is inserted, and a fastening means for engaging the plug and the socket to be separably detachable, wherein the plug is relatively moved when the plug is moved to the socket. And posture matching means for matching the relative posture of the socket.

In such a configuration, when the plug is inserted into the socket, the plug is locked in the socket by the engagement means.

When the plug is moved in the direction of inserting the plug into the socket, the relative attitude of the plug and the socket is adjusted by the attitude matching means. By the adjustment by this posture matching means, the axis of a plug and the axis of a socket become parallel, and a plug is inserted smoothly in a socket in this state.

According to this configuration, even when the plugs are inserted into the sockets, the axes of each other are not parallel to each other but are in a crossed (twisted) state. And an axis with the plug are adjusted to be parallel by the attitude adjusting means. Then, in a state where the axis of the socket and the plug are parallel, when the socket and the plug are naturally pressed in the direction along the axis, the plug is smoothly inserted into the socket.

In this way, when the plug is inserted into the socket, even if the original relative posture of the plug and the socket is not matched, the posture adjusting means adjusts the axes of the axes to be parallel to each other. The socket and plug can be easily fitted without any effort. In addition, since the posture is adjusted by the posture adjusting means when the plug is inserted into the socket, the plug can be reliably inserted into the socket in one operation without being caught in the middle when the plug is inserted into the socket.

In the present invention, the posture matching means is provided with a guide path which is installed on either of the plug and the socket and widened, and guided means installed on any other of the plug and the socket and guided along the guide path. It is desirable to.

In such a configuration, the plug is inserted into the socket. At this time, since one side of the plug and the socket is provided with a widened guide path, the guided means provided on the other side of the plug and the socket enters the guide path. Then, the guide means is guided by the guide path as the plug is inserted into the socket.

Since the guided means are provided on the other side of the plug and the socket, the guided means is guided to the guideway so that the other side of the plug and the socket is guided. The relative attitude of the plug and the socket is adjusted so that one axis having the guided means among the plug and the socket is parallel to the other axis in the course of the trajectory correction of the traveling direction by the guide.

According to this structure, since the guide path is widened, the guided means is accommodated in the guide path without adjusting the relative posture between the plug and the socket when inserting the plug into the socket. Therefore, since the effort which puts the posture of a plug and a socket in the beginning does not require, a buckle can be made easy to operate.

In addition, when the socket and the plug are flat to each other or cannot be engaged unless the positions of the engagement means correspond to each other, the guide path and the guide means when the plug is inserted into the socket as well. It is necessary to be provided in predetermined positions, respectively, so that the guide means may contact.

In addition, when it is necessary to correspond also to the up-down direction (front and back) when inserting a plug into a socket, a guide path and a to-be-guided means should be provided in the socket and plug at the same surface side of upper and lower surfaces.

In this invention, it is preferable that the said attitude | position matching means is equipped with the axial line formed continuously from the said guide path in either of the said plug and the said socket.

In such a configuration, when the plug is inserted into the socket, the guided means is guided by the guide path, and the guided means is guided by the axis line. At this time, since the axis line is formed, the advancing direction of the guided means is regulated in the direction of the axis line.

Since the relative attitude of the plug and the socket is adjusted by the guide by the guide path, and the axis is aligned, the direction of relative movement between the plug and the socket becomes the direction of the axis line, so that the plug can be smoothly inserted into the socket.

In the present invention, the guided means preferably has a predetermined length.

In such a configuration, when the plug is inserted into the socket, the front end of the guided means is guided to the guide path, whereby the relative attitude of the plug and the socket is adjusted to align the axis.

Further, in the case where the guided means has a predetermined length and the guided means of the predetermined length passes through a vertex opposite to the width-expanding side of the guideway, the relative movement direction of the plug and the socket is naturally in the longitudinal direction of the guided means. Becomes As a result, the plug can be smoothly inserted into the socket.

In the present invention, the guide path is provided in the socket, the socket is provided with a ceiling plate portion and a bottom plate portion constituting the upper and lower surfaces, the guide path is formed on at least one of the ceiling plate portion and the bottom plate portion It is desirable to have.

In such a configuration, when at least one of the ceiling plate portion and the bottom plate portion of the socket is provided, the guided means of the plug inserted into the socket can be guided.

Moreover, the guide path of the same shape may be formed in both a ceiling board part and a bottom board part. And when the guide path of the same shape is formed in both a ceiling board part and a bottom board part, it is preferable to be provided in the upper and lower sides of the guide means to be plugged.

According to such a structure, since a socket and a plug do not distinguish between up and down, it is not necessary to confirm each up-down direction in inserting a plug into a socket, and operation can be simplified.

In the present invention, the guide passage is provided by a guide end surface portion provided at the end face of the circumferential wall formed at the same time as the circumferential wall of the socket is cut out, wherein the guide means is installed on the plug. And the guide bar insertable into the socket and the guide bar are provided with a stepped portion formed convexly from the guide bar so as to be in contact with the guide end surface when the guide bar is inserted into the socket.

In such a configuration, when the socket is inserted into the plug, the stepped portion formed in the convex shape from the guide bar is in contact with the guide end surface portion constituting the guide path. Then, when the plug is inserted into the socket, the step is guided while contacting the guide end surface portion, and the relative posture of the plug and the socket is adjusted so that the axes of the plug and the socket are parallel to each other. When the socket and plug axis are parallel, pressing the socket and plug naturally in the direction along the axis allows the plug to be inserted smoothly into the socket.

According to this configuration, since the guide path is formed by cutting the peripheral wall of the socket, the portion of the guide path is cut out from the conventional socket shape, and as a result, the socket can be reduced in weight and the material cost can be reduced. have.

The guide end face may be an end face of the peripheral wall formed when the peripheral wall of the socket is cut off, or may be formed as a wall face that is bent to have a predetermined height as the guide end face on the end face of the peripheral wall. .

In the case where the shaft line is provided in the socket, it is preferable that the shaft line is also formed by cutting the peripheral wall.

The guide path may be formed in the guide bar, and the guided means may be formed in the socket. That is, the front end of the guide bar may be divided into two branches, and the two guideways may be formed. And the projection part latched to the guide path of the said guide bar may be provided convexly from the inner wall of the said socket.

In this invention, it is preferable that the said step part is formed with the through-hole which penetrates the center part with the said guide bar, leaving the periphery part of this step part.

In such a configuration, in inserting the plug into the socket, the periphery of the step portion is guided in contact with the guide end face, whereby the attitude of each other is adjusted so that the axis of the plug and the axis of the socket are parallel to each other.

Since the outer periphery of the stepped portion may contact the guide end face, a through hole penetrating the guide bar from the center portion of the stepped portion may be provided in a portion where the center portion of the stepped portion may be hollow. This is reduced.

Here, in the present invention, the engaging means are protrudingly installed from the rear end side of the plug toward the front end at both side ends of the plug, and can be inserted into the socket and engaged with the socket to be detachably engaged. It is preferable to have a pair of flexible lock arms, and the front end of the stepped portion is located on or ahead of the line connecting the front ends of the pair of lock arms.

In such a configuration, inserting the plug into the socket engages the pair of lock arms installed in the plug within the socket and engages the socket.

Here, the part where the step part is provided in the guide bar of a plug, and the front end part of a step part are located on the line which connects the front end parts of a pair of lock arms, or ahead of it.

Then, when the socket is inserted into the plug, the stepped portion is guided in contact with the guide end face of the guide path before the front end of the lock arm contacts the socket.

Therefore, even when the plug and the socket are not aligned with each other in the insertion of the plug into the socket, the stepped portion is guided by the guide path in advance of the lock arm, so that when the lock arm enters the socket, The relative posture will be adjusted to match. As a result, no obstacle, such as the lock arm catching in the socket, occurs, and the plug can be smoothly inserted into the socket.

In addition, as long as the front end of the stepped portion can contact the guide path before the front end of the lock arm, the front end of the stepped portion does not necessarily need to be positioned on or in front of the line connecting the front end of the lock arm. .

In the present invention, the socket is provided with a ceiling plate portion and a bottom plate portion constituting the upper and lower sides, the guide bar has a clamped portion sandwiched between the ceiling plate portion and the bottom plate portion in the state where the guide bar is inserted into the socket. It is preferable.

According to this configuration, since the clamped portion of the guide bar is sandwiched between the ceiling plate portion and the bottom plate portion of the socket when the plug is inserted into the socket, the posture of the plug is stabilized in the state inserted into the socket.

In the present invention, it is preferable that the guide bar has a pair of bridges and these pairs of bridges are connected to each other at the connecting portion.

According to this configuration, even when the guide bar is composed of a pair of bridges, since the connecting portion connects the pair of bridges to each other, the rigidity of the bridge can be regulated to increase the rigidity. As the rigidity of the bridge is increased, the guide operation of the guide bar can be stabilized, and the desired guide function can be reliably obtained.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described and demonstrated with reference to the code | symbol attached to each element in drawing.

(1st embodiment)

EMBODIMENT OF THE INVENTION The 1st Embodiment which concerns on the buckle of this invention is demonstrated with reference to FIGS.

1 is a perspective view showing a state where a plug is inserted into a socket, FIG. 2 is a perspective view showing a socket, and FIG. 3 is a perspective view showing a plug.

This buckle connects and detaches the belt attached to the socket and the belt attached to the plug, as shown in Fig. 1, and can release the engagement between the socket and the plug by a pressing movement operation from the side of the socket. Side relief buckle.

The buckle 10 has a socket 20 and a plug 30.

As shown in Fig. 2, the socket 20 is a cylindrical member having an insertion opening 21 at the front end portion into which the front end side of the plug 30 is inserted, and the socket base portion 22 to which the belt 101 is attached. ) And a housing portion 23 having a flat cylindrical shape and having a top plate portion 231 constituting the upper and lower surfaces, and a pair of side plate portions 233 constituting the side surfaces.

The socket end portion 22 constitutes a rear end side of the socket 20, and the socket base portion 22 has an opening formed with a belt locking hole 221 for winding and attaching the belt 101.

The housing portion 23 has a circular arc-shaped reduction portion 236 cut in both sides in a semicircular shape, and the side plate portion 233 has an opening for operating holes 234 communicating with the inside of the housing portion 23. have. In addition, the side plate portion 233 is connected to the operation hole portion 234 at the rear end side edge of the operation hole portion 234, and the opening width in the vertical axis N1 direction is narrower than the operation hole portion 234. The hole part 235 is formed.

The top plate portion 231 and the bottom plate portion 232 of the housing portion 23 have a guide path 24 formed to be cut into a substantially triangular shape from the front end side to the rear end side, and the rear end side of the guide path 24. An axial line 25 is formed so as to be cut further from the vertex 241 corresponding to the rear end side.

The guide path 24 has a shape extending in width toward the front end from the vertex 241, specifically, the end face 242 of the ceiling plate part 231 and the bottom plate part 232 continuously from the insertion hole 21. The guide direction of the guide path 24 is defined by (guide end face part). In addition, the width of the furnace width at the front end side of the guide path 24 is about two thirds of the width of the insertion hole of the socket 20. In addition, the opening angle ((alpha) in FIG. 5) of the guide path 24 from this centerline is about 30 degree | times, using the front-back direction axis A1 as a centerline.

The axis line 25 is formed with predetermined length L1 along the front-back direction axis A1.

The guide path 24 and the axis line 25 are opened to communicate the inside and the outside of the socket 20.

The plug 30 has a plug base portion 31 to which the belt 101 is attached as shown in FIG. 3, and a pair of locks protruding toward the front end side at both end portions of the plug base portion 31. FIG. A guide bar 33 having a predetermined length along the front-rear axis A2 is provided between the arms 32 and 32 and the lock arms 32 and 32.

The plug end portion 31 constitutes the rear end side of the plug 30, and the plug base portion 31 is provided with a belt locking hole 311 for winding and attaching the belt 101.

The pair of lock arms 32 and 32 and the guide bar 33 can be inserted into the socket 20 and constitute the front end side of the plug 30.

The lock arm 32 is a flexible arm, is formed in the middle of the lock arm 32, and the press movement operation part 321 and the press movement operation part 321 for pressure movement operation of the lock arm 32 from the side to the inside. A thin plate-shaped thin plate connecting portion 323 extending toward the front and a locking hook portion 324 formed at the front end of the lock arm 32 and having a convex step with respect to the thin plate connecting portion 323.

The pressure movement operation part 321 is a shape in which an outer side surface expands slightly in circular arc shape toward the side with respect to the line of the lock arm 32 whole. The latch hook portion 324 has a taper that becomes thinner toward the front end, and has a chamfered side that is thinner toward the front end.

When the plug 30 is inserted into the socket 20, the pressing movement operating portion 321 is exposed from the operation hole 234 of the socket 20 (see FIG. 1), and the thin plate connecting portion 323 is held. Engaged in the hole portion 235, the locking hook portion 324 is engaged with the locking hole portion 235. In addition, a through hole 322 is formed in the center portion of the pressing movement operating portion 321.

The guide bar 33 protrudes forward from both end portions of the plug base portion 31, and at the same time, a pair of bridges 34, which approach toward the front end to face the front end on the front-rear axis A2, 34, a guide head portion 35, and a guide head portion 35 and a bridge extending from the front ends of the bridges 34 and 34 further forward and having a predetermined length along the front-rear axis A2. And a stepped portion 36 provided with a step from the upper and lower surfaces of both sides 34 and convex in a convex shape.

The pair of bridges 34 and 34 form a substantially triangular shape, and the center portion of the triangular shape is a through hole 341. The rear end side (plug base portion 31 side) of the guide head portion 35 is a connecting portion 33A that connects the front end side of the pair of bridges 34 and 34.

The guide head portion 35 has a thickness t2 approximately equal to the interval t1 of the ceiling plate portion 231 of the housing portion 23 and the bottom plate portion 232, and the front end of the guide head portion 35. Is located on the line connecting the front ends of the pair of lock arms 32 and 32.

In addition, a tapered surface 351 is formed at the front end of the guide head portion 35 to reduce the thickness as it faces the front.

The step portion 36 is a portion provided in the convex shape from the upper and lower surfaces of the guide head 35 and the bridge 34 from the guide head portion 35 to the bridge 34, and the height of the step portion 36 is a housing. It is approximately equal to the thickness of the ceiling plate portion 231 and the bottom plate portion 232 of the portion 23. The front end of the step portion 36 is formed in the shape of an chamfered arc.

The step portion 36 provided in the guide head portion 350 is formed to be much smaller than the guide head portion 35, and the surface 352 of the guide head portion 35 remains on the front and side of the step portion 36. In addition, the side surface 342 of the bridge 34 remains on the side of the step portion 36 provided in the bridge 34. When the guide bar 33 is inserted into the socket 20, the remaining surfaces 342 and 352 except the step portion 36 are sandwiched by the ceiling plate portion 231 and the bottom plate portion 232 of the housing portion 23. It becomes the to-be-engaged part (refer FIG. 4).

In addition, the stepped portion 36 provided in the guide head portion 35 has a through hole 361 formed in the center portion thereof, leaving the periphery portion 363. The through hole 361 has a stepped portion 36 and a guide head. It penetrates the part 35.

Moreover, the step part 36 provided in the guide head part 35 is a shape which has predetermined length L2 (L1 = L2) along the front-back direction axis A2 corresponding to the axis line 25 of the socket 20. As shown in FIG. The step portion 36 provided in the bridge 34 has a shape corresponding to the guide path 24 of the socket 20.

Here, the plug 30 is inserted into the socket 20 by the operation hole 234 and the locking hole 235 of the socket 20 and the lock arm 32 of the plug 30. The engagement means for engaging 30 and the socket 20 so that engagement and detachment is comprised is comprised.

In addition, the guided means guided in contact with the guide path 24 by the guide bar 33 is configured, and the guide path 24 and the shaft line 25 of the socket 20 and the plug 30 are provided. When the plug 30 is relatively moved in the direction in which the plug 30 is inserted inward from the insertion hole 21 of the socket 20 by the guide bar 33 and the step portion 36, the forward and backward axis A2 of the plug 30. ) And posture matching means for matching the relative posture of the plug 30 and the socket 20 in the direction in which the front-rear axis A1 of the socket 20 is parallel to each other.

The operation of the first embodiment having such a configuration will be described with reference to Figs.

In inserting the plug 30 into the socket 20, the front end of the plug 30 is disposed toward the insertion opening 21 of the socket 20.

Here, in this embodiment, as shown in FIG. 5, the front end of the plug 30 should just oppose the insertion opening 21 of the socket 20, and the forward-backward axis A2 of the plug 30 may be sufficient. The front-rear axis A1 of the socket 20 and the socket 20 may cross each other without being parallel.

In this state, the plug 30 is moved along the front-back direction axis A2 toward the insertion port 21 of the socket 20.

Then, as shown in FIG. 6, the front end of the plug 30 is inserted into the insertion hole 21 of the socket 20, and the front end of the step 36 is the guideway 24 of the socket 20. To contact.

After the front end of the step portion 36 contacts the guide path 24, the plug 30 is press-fitted so that the front end of the step 36 is guided by the guide path 24. The attitude | position of the plug 30 is adjusted in the direction which is guided toward the vertex 241 and the front-back direction axis A2 of the plug 30 is parallel to the front-back direction axis A1 of the socket 20.

When the front end of the step portion 36 reaches the vertex 241 of the guide path 24, as shown in FIG. 7, the forward and backward directions A2 of the plug 30 and the front and rear of the socket 20 are shown. The direction axis A1 becomes parallel, and when the plug 30 is pressed in the socket 20 in this state, the front end of the step part 36 advances along the axis line 25.

When the front end of the step portion 36 reaches the rear end of the axis line 25, the step portion 36 provided in the guide head portion 35 contacts the end face of the axis line 25 in contact with the axis line. The opening of the 25 is closed, and the step 36 provided in the bridge 34 contacts the end face of the guide path 24 to close the opening of the guide path 24. At this time, the locking hook portion 324 of the lock arm 32 is engaged with the locking hole portion 235 of the socket 20 inside the socket 20. Then, as shown in FIG. 1, the plugs 30 are engaged with each other in a state where the plugs 30 are fitted in the sockets 20.

In addition, when releasing engagement of the plug 30 and the socket 20, the locking hole part 235 and the locking hook part by pressing the pressure movement operation part 321 of the lock arm 32 toward the inside from the side. 324 is released and the plug 30 is pulled out of the socket 20 in this state.

According to the first embodiment having such a configuration, the following effects can be obtained.

(1) Since the guide path 24 is provided in the socket 20, and the plug 30 is provided with a step 36 as guided means guided in contact with the guide path 24, the plug 30 ) Is inserted into the socket 20, the forward and backward axes A1 and A2 of each other are not parallel to each other and are in a cross (twisted) state, and in this state, the relative movement along the respective forward and backward axes A1 and A2. Even when the plug 30 is to be inserted into the socket 20, the front and rear axes A1 and A2 of the socket 20 and the plug 30 are adjusted to be parallel to each other (see FIG. 6).

In this way, in inserting the plug 30 into the socket 20, the front and rear axes A1 and A2 are parallel to each other without having to match the original relative posture of the plug 30 and the socket 20. Therefore, the socket 20 and the plug 30 can be easily engaged with each other without the trouble of checking or adjusting the relative posture of the socket 20 and the plug 30. In addition, when the plug 30 is inserted into the socket 20, the front end of the step 36 is guided by the guide path 24, so that the attitude of the plug 30 is adjusted. When the insert 30 is inserted, the plug 30 can be reliably inserted into the socket 20 by one operation.

(2) Since the guide path 24 is formed in the shape of widening at the front end side, when the plug 30 is inserted into the socket 20, the relative posture of the plug 30 and the socket 20 is not adjusted. Even if the front end of the plug 30 is inserted into the insertion port 21 of the socket 20, the step portion 36 is naturally accommodated in the guide path 24. Therefore, since the effort which puts the posture of the plug 30 and the socket 20 in the first place is not required, the buckle 10 which is easy to operate can be made.

(3) Since the axial line 25 is provided along the front-rear axis A1 of the socket 20, the step portion 36 after the front end of the step portion 36 is guided by the guide passage 24. Is guided by the axis line 25. In addition, the step part 36 provided in the guide head part 35 has the predetermined length L2 along the front-back direction axis A2, and the step part 36 has the vertex 241 of the guide path 24. In passing, the front-rear axis A1 and A2 which are the longitudinal direction of the step part 36 and the axial line 250 naturally become parallel. Thus, since the relative movement direction of the plug 30 and the socket 20 naturally becomes the direction along the front-back direction axis A1, A2 by restricting to the direction in which the front-back direction axis A1, A2 is parallel, a plug is carried out smoothly. 30 can be inserted into the socket 20.

(4) Since the guide path 24 and the axis line 25 are formed in the shape which cuts off the ceiling plate part 231 and the bottom plate part 232, the part of this guide path 24 and the axis line 25 is It is possible to cut out from the conventional socket shape, and as a result, the socket can be reduced in weight and the material cost can be reduced. In addition, since the guide path 24 and the shaft line 25 are formed by cutting the ceiling plate portion 231 and the bottom plate portion 232 so that the inside and the outside of the socket 20 communicate with each other, the guide groove is formed on the inner wall surface of the socket. Compared with the case of forming, the peripheral wall of the socket can be made thin, and as a result, weight reduction and material cost can be further reduced.

(5) Since the through hole 361 is formed in the center part of the step part 36 provided in the guide head part 35, and the space enclosed by a pair of bridge is the through hole 341, the plug 30 ), And the material cost is reduced. Moreover, since the through-hole 322 is formed also in the pressure movement operation part 321, weight reduction and material cost reduction can be aimed at further.

(6) A through hole 361 is formed in the step portion 36 provided in the guide head portion 35, and a space surrounded by the pair of bridges 34 is a through hole 341, and these plugs When the 30 is inserted into the socket 20, the peripheral wall of the socket 20 (the ceiling plate portion 231 and the bottom plate portion 232) is fitted to the cut guide path 24 and the shaft line 25. Even when the plug 30 is inserted into the socket 20, the plug 30 opens outward without being blocked. Therefore, air can flow between the upper and lower surfaces of the buckle 10 even when the plug 30 is inserted into the socket 20. As a result, even when cloth such as a belt is disposed on the back surface of the buckle 10, for example, it is possible to improve ventilation and prevent the occurrence of mold and the like.

(7) The step portion 36 is formed much smaller than the guide bar 33, and the front surface 352 of the guide bar 33 exists as a clamped portion in front and side of the step portion 36, and the plug 30 Is inserted into the socket 20, the clamped portion is sandwiched between the ceiling plate portion 231 and the bottom plate portion 232 of the socket 20 (see Fig. 4), so that the plug 30 is stable in the socket 20. This prevents rattling and the like when the socket 20 and the plug 30 are engaged. Moreover, it can be set as the structure strong against the twisting and torsional operation of the buckle 10 in the state which engaged the socket 20 and the plug 30.

(8) Since the guide path 24 and the shaft line 25 of the socket 20 and the step portion 36 of the plug 30 are provided on both upper and lower sides, there is no distinction between the upper and lower sides (front and back), and the plug 30 Since it is not necessary to check the top and bottom in inserting the plug into the socket 20, the operation can be simplified.

(9) Since the tapered surface 351 which becomes thinner toward the front end part is provided in the front end part of the guide bar 33, the ceiling plate part of the socket 20 can be easily connected to the front end part of the guide bar 33. It may be inserted between the 231 and the bottom plate portion 232. Then, the plug 30 can be inserted smoothly into the socket 20 without causing an obstacle such as being caught when the plug 30 is inserted into the socket 20.

(10) The guide head part 35 is divided into a pair of both side parts in the through hole 361, and each of them is likely to bend as long as the length is extended in series with each other in succession to the bridge 34. However, in the above embodiment, since the rear end side of the guide head portion 35 connects the front end side of the pair of bridges 34 as the connecting portion 33A, the bridges 34 to 35 of the guide head portion 35 are formed. The rigidity can be increased by regulating the warpage of both sides. By increasing the rigidity of the bridge 34 to the guide head 35, the guide function of the guide bar 33, that is, the guide operation shown in Figs.

(First modification)

Next, a first modification of the buckle of the present invention will be described with reference to FIG.

Although the basic structure of a 1st modification is the same as that of 1st Embodiment, in FIG. 8, the length L2 of the step part 36 provided in the guide head part 35 is formed short compared with 1st Embodiment. That is, the step part 36 provided in the guide head part 35 and the step part 36 provided in the bridge 34 are isolate | separated.

Also in this configuration, in inserting the plug 30 into the socket 20, the front end of the step 36 is guided to the guide path 24 and the shaft line 25 of the socket 20, and the plug ( The relative postures of the plug 30 and the socket 20 are adjusted so that the front and rear axes A1 and A2 of the socket 30 and the socket 20 are parallel to each other so that the plug 30 can be smoothly inserted into the socket 20. Can be.

(Second modification)

Next, a second modification of the buckle of the present invention will be described with reference to FIG.

The basic configuration of the second modification is the same as that of the first embodiment, but the shape of the guide path provided in the socket 20 and the shape of the guide bar and the step of the plug 30 are different from those of the first embodiment in FIG. .

That is, in Fig. 9, the guide path 40 is shaped to be cut deeper than in the first embodiment so as to widen from the rear end bias of the housing portion 23 toward the front end. That is, in the first embodiment, a linear axis line 25 is provided on the rear end side from the vertex 241 of the guide path 24. The axis line 25 also extends in width toward the front end. It can be seen that included in the guideway (40).

In addition, the shape of the guide bar 50 of the plug 30 is a shape corresponding to the shape of the guide path 40 of the socket 20, and a pair of bridges 52 connect the front end of each other to the plug 30. It is provided so that the front end (on the line which connects the front ends of the lock arms) may be matched.

That is, in the first embodiment, the guide bar 33 was provided with the bridge 34 and the guide head part 35 extending from the front end of the bridge 34. In the second modification, even the guide head part is provided. It can be said that it comprises the bridge 52.

And the step part 53 is convexly provided in the upper and lower surfaces from the front end part of the guide bar 50 to the bridge 52, and corresponds to the substantially triangular shape comprised by the pair of bridges 52 and 52 as a whole. Shape.

Moreover, in this 2nd modification, the connection part 33A which connects each intermediate part of a pair of bridges 52 is provided, and the rigidity of each bridge 52 is secured.

Also in this configuration, since the front end of the step portion 53 is guided by the guide path 40 when the plug 30 is inserted into the socket 20, the forward and backward axes of the plug 30 and the socket 20 are oriented. The relative attitude | position of the plug 30 and the socket 20 is adjusted so that (A1, A2) may become parallel, and the plug 30 can be inserted in the socket 20 smoothly.

In particular, since the line as the guide path 40 is long and smoothly formed, the posture adjustment of the plug 30 is not abruptly and smoothly and smoothly. As a result, the plug 30 is very smoothly inserted into the socket 20. can do.

(Third modification)

Next, a third modification of the buckle of the present invention will be described with reference to FIG.

The basic configuration of the third modification is the same as that of the first embodiment, but the third modification is characterized by the fact that the guide path 24 and the axis line 25 of the socket 20 are formed only in the ceiling plate portion 231 and the step is The part 36 is provided only in the upper surface side of the guide bar 33.

Thus, when the guide path 24, the axis line 25, and the step part 36 are provided only in one side of the upper and lower sides (front and back), the front end of the step part 36 is the guide path of the socket 20 ( Since the relative attitude of the plug 30 and the socket 20 is adjusted so that the front and rear axes A1 and A2 of the plug 30 and the socket 20 are parallel to each other and guided to the 24 and the axial line 25, The plug 30 can be smoothly inserted into the socket 20.

(2nd embodiment)

Next, a second embodiment of the buckle of the present invention will be described with reference to FIG.

Although the basic structure of 2nd Embodiment is the same as that of 1st Embodiment, it differs from 1st Embodiment by the point that an axis line is not provided in a socket.

In Fig. 11, the ceiling plate portion 231 and the bottom plate portion 232 of the socket 20 are provided with a guide path 24 formed so as to be cut out, and the end of the ceiling plate portion 231 and the bottom plate portion 232. The guide end surface plate part 242 is erected on the side surface.

And the edge part 37 of the guide bar 33 can penetrate between the guide end surface plate part 242, but the clearance gap 243 in which the step part 36 cannot penetrate is formed.

In addition, the guide end surface plate part 242 is not provided in the vertex 241 part of the guide path 24, The step part 36 also passes through the vertex 241 of the guide path 24, The ceiling plate part 231 ) And the bottom plate portion 232 can be inserted therethrough. Here, the step part 36 provided in the guide head part 35 becomes a clamped part clamped by the ceiling plate part 231 and the bottom plate part 232 when the plug 30 is inserted in the socket 20.

The guide bar 33 has a pair of bridges 34 and 34 and a guide head portion 35 extending from the front end of the bridge 34 in the same manner as in the first embodiment. Although the thickness of the 35 is thin and the height of the step portion 36 provided in the guide head portion 35 cannot be inserted into the gap 243 of the guide end surface plate portion 242, the ceiling plate portion 231 and the bottom are not inserted. It is the height which can be penetrated between the plate parts 232.

On the other hand, the bridge 34 is provided with a higher step portion 362 with respect to the step portion 36 of the guide head portion 35, and the height of the step portion 362 is a ceiling plate portion 231 and a bottom plate portion ( 232) It is a height that can not penetrate between.

In such a configuration, in inserting the plug 30 into the socket 20, a portion for inserting the front end of the plug 30 from the front end of the socket 20, the front end of the lock arm 32 is guided. Inserted into the insertion hole 21 between the bottom plate portion 242 and the side plate portion 233, and also inserts the side edge portion 37 of the guide head portion 35 into the gap 243 of the guide end surface plate portion 242. While the step portion 36 of the guide head portion 35 abuts the guide end surface plate portion 242.

In this state, when the plug 30 is further pressed, the front end of the stepped portion 36 is guided to the guide end surface plate portion 242 so that the front end of the stepped portion 36 is connected to the vertex 241 of the guide path 24. The guide head portion 35, including the step portion 36, enters between the ceiling plate portion 231 and the bottom plate portion 232 from the vertex 241 of the guide path 24.

And the whole of the guide head part 35 enters between the ceiling plate part 231 and the bottom plate part 232 from the vertex 241 of the guide path 24, and the step part 362 of the bridge 34 is a guide end surface. At the point of contact with the plate portion 242, the locking hook portion 324 of the lock arm 32 is engaged with the locking hole portion 235 of the socket 20 so that the plug 30 fits into the socket 20. It fits together in a locked state.

Also in this 2nd Embodiment, in inserting the plug 30 into the socket 20, the front end of the step part 36 is guided to the guide path 24 of the socket 20, and The relative attitude of the plug 30 and the socket 20 is adjusted so that the front-rear axis A1, A2 of the socket 20 becomes parallel, and the plug 30 can be inserted smoothly in the socket 20. FIG.

In addition, this invention is not limited to embodiment mentioned above, The deformation | transformation, improvement, etc. in the range which can achieve the objective of this invention are contained in this invention.

In molding the plug 30 and the socket 20, for example, the plug 30 and the socket 20 can be formed by injection molding. Examples of the material include synthetic resins, metals, and the like, and are not particularly limited.

Although the case where the engagement means is comprised by the lock arm, the operation hole part, and the locking hole part was demonstrated as an example, the structure of the engagement means is not limited.

The shape of the guide path, the shape of the axis line, the shape of the stepped portion (guided means) and the like are not limited to those described in the above embodiments and modified examples, and various modifications can be made within the scope of achieving the object of the present invention. Of course it is. In addition, when the guideway is provided in the socket, the furnace width on the front end side of the guideway is preferably, for example, one-third or more of the width of the insertion hole, or preferably two-thirds or more of the width of the insertion hole. Do.

Moreover, it is preferable that the opening angle of the guideway from this centerline is about 45 degrees or less, and about 35 degrees, about 30 degrees, and about 15 degrees may be sufficient as the center line about the front-back direction axis A1, A2. This is because, when the opening angle of the guide path is 45 degrees or less, when the plug is pressed while contacting the step portion of the plug with the guide end face of the guide path, the plug is naturally guided to the guide end face part and guided into the socket.

In the above embodiment, the case where the guide path is provided in the socket and the guided means (step portion) is installed in the plug has been described as an example. For example, as shown in FIG. 12, the guide bar of the plug 30 ( At the front end of the guide 33, the guide path 60 is formed to be widened, and at the same time, an axial path 61 is formed from the guide path 60 toward the rear end, and the inner wall at the front end side of the socket 20 is formed. A projection (guided means) 70 engaged with the guide path 60 and the axis line 61 may be formed.

In the above embodiment, the case where the socket 20 has a cylindrical shape formed by the ceiling plate portion 231, the bottom plate portion 232, and the side plate portion 233 has been described as an example, but the socket includes a ceiling plate portion and a bottom plate portion. The shape which does not have a side plate part and opened side may be sufficient.

In the said embodiment, although one connection part 33A which connects a pair of bridge 34 or bridge 52 mutually was provided, this may be two or more. The shape of the connection part 33A can use arbitrary shapes, such as square bar shape, cylinder shape, and flat plate shape. The connecting portion 33A may connect the front end side as in the case of the bridge 34, or may connect the intermediate portion as in the case of the bridge 52. Or you may connect arbitrary parts, such as a rear end.

According to the present invention, it is possible to provide a buckle capable of easily and smoothly engaging a socket and a plug.

Claims (9)

In the buckle provided with a plug 30, a socket 20 into which the plug 30 is inserted, and a fastening means for engaging the plug 30 and the socket 20 in a separable manner, And posture matching means for matching the relative posture of the plug (30) and the socket (20) when the plug (30) is moved relative to the socket (20). The method of claim 1, wherein the posture matching means is a guide path (24, 40) which is installed on either of the plug 30 and the socket (20) and widened; A buckle, characterized in that it is provided on either side of the plug (30) and the socket (20) and guided means guided along the guide path (24, 40). The said posture matching means is provided with the axial line 25 formed continuously from the said guide path 24 in either the said plug 30 and the said socket 20, The said posture matching means characterized by the above-mentioned. buckle. The buckle according to claim 2, wherein the guided means has a predetermined length. According to claim 2, The guide path (24, 40) is installed in the socket 20, The socket 20 includes a ceiling plate portion 231 and a bottom plate portion 232 constituting the upper and lower surfaces, The guide path (24) is a buckle, characterized in that formed on at least one of the ceiling plate portion (231) and the bottom plate portion (232). The guide passages 24 and 40 are installed in the socket 20, and the peripheral walls 231 and 232 of the socket 20 are cut out. It is composed of a guide end surface portion 242 provided on the end surface of the peripheral wall (231, 232) is formed, The guide means is installed on the plug 30 and the guide bar 33 which can be inserted into the socket 20, When the guide bar 33 is inserted into the socket 20 is provided with a step portion 36 formed in a convex shape from the guide bar 33 so as to be in contact with the guide end surface portion 242. Buckle, characterized in that. 7. The stepped portion (36) is characterized in that the stepped portion (36) is formed with a through hole (361) passing through the center portion with the guide bar (33), leaving the periphery (363) of the stepped portion (36). Buckle made. The method of claim 6, wherein the socket 20 is provided with a ceiling plate portion 231 and a bottom plate portion 232 constituting the upper and lower surfaces, The guide bar 33 is a clamped portion 342, 352, 36 held between the ceiling plate portion 231 and the bottom plate portion 232 in a state where the guide bar 33 is inserted into the socket 20. Buckle characterized in that having. 7. The guide bar (33) according to claim 6, characterized in that the guide bar (33) has a pair of bridges (34, 52), which are connected to each other by a connecting portion (33A). buckle.

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